Wrench.



F. W. PRINGLE.

WRENCH. APPLICATION FILED NOV. 7, 1910.

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FRANK W. PRINGLE, 0F MEARS, MICHIGAN.

WRENCH.

Specification of Letters Patent.

Patented June 18, 1912.

Application filed November 7, 1910. Serial No. 591,201.

To all 'whom t may concern Be it known that I, FRANK W. PRINGLE, acitizen of the United States, residing at Mears, in the county of Oceanaand State of Michigan, have invented a new and useful Improvement inWrenches, of which the following is a specification.

This invention relates to certain new and useful improvements inwrenches, the object being to rovide a wrench with a slidably mounts jawwhich can be moved easily and quickly and always locked.

Another object of my invention is to provide a wrench in which thesliding jaw is provided with a pair of pivoted dogs adapted to co-actwith notches formed in the sides of the shank of the wrench, which areout of transverse alinement, whereby the jaw can be moved quickly to tany size nut.

A still further object of my invention is to provide the pivoted dogswith handles connected together by a coiled spring, in order to hold thedogs into engagement with the sides of the shank.

With these objects in view, the invention consists in the novel featuresof construction, combination and arrangement of parts, hereinafter fullydescribed and pointed out in the claim.

In the drawing forming a part of this speciiication:-Figure 1 is a sideelevation of my improved wrench. Fig. 2 is a top plan view the handlebeing broken ofi". Fig. 3 is a section taken transversely through thewrench.

Referring to the drawing, A indicates a shank which is provided with afixed jaw B at its outer end, and a handle C at its inner end. The sidesof the shank A are notched as clearly shown at D, the grooves of whichare out of transverse alinement for the purpose later described.

Slidably mounted on the shank A is a j aw E which is provided with eyesE upon opposite sides carrying pintle pins F on which are mounted theeyes of dogs G, which are adapted to co-act with the notches D of theshank, in such a manner as to lock the slidably mounted jaw E in itsadjusted position.

The dogs G are provided with rearwardly projecting handle portions H andI which extend over the back of the shank, and are provided with knobs HI extending outwardly in opposite directions, whereby the same can bereadily operated by the thumb and fore-finger. The handles H and I areconnected together by a coiled spring J for holding the dogs intoengagement in the shank of the wrench, whereby one of the dogs willalways be -held within one of the notches of the shank, and the otherdog on one of the ribs between the notches.

From the foregoing description, it will be seen that I have provided awrench with a sliding jaw having a pair of spring actuated dogs whichare normally held into engagement with the shank of the wrench so as tohold the jaw securely.

What I claim is In a wrench, the combination with a shank provided witha fixed jaw at one end, and a handle at the other, of a aw slidablymounted on said shank, said shank being provided with notched sides outof transverse alinement, eyes formed on the sliding jaw carrying pintlepins, dogs mounted on said pintle pins adapted to engage the notches ofsaid shank, handles extending rearwardly and toward each other from saiddogs, a coiled spring connecting said handles, and knobs carried by theends of said handles extending in opposite directions.

F. W. PRINGLE.

Vitnesses:

E. W. I-IOYT, L. L. WORTH, A. H. HENDERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of .Patents, Washington, D. C.

